A-LevelBiologyCell membranes and transport9700/12 · Feb/Mar 2018 · Q161 Mark

Cholesterol is an integral component of the cell surface membrane. Which statement about cholesterol is correct?

AIt allows ions to pass freely through the cell surface membrane.

BIt has a hydrophobic head and a hydrophilic tail.

CIt helps to regulate the fluidity of the cell surface membrane.

DIt reduces the mechanical stability of the phospholipid bilayer.

✓ Correct answer

C: It helps to regulate the fluidity of the cell surface membrane.

Oracle Prep sorts past-paper questions by topic, so you can drill Cell membranes and transport and see which topics are most likely to come up next.

Topic: Cell membranes and transport, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Feb/Mar 2018 Paper 1 Variant 2, question 16.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content